function plotPositions (x, y, figureNr)
	figure(figureNr)
	plot(x, y,"+r")
	axis( [0, 5.4, 0, 7.4] , "equal", "manual")
	set (gca,'FontSize',20)
	fileName = ["fig",int2str(figureNr),".eps"]
	print('-depsc',fileName)
endfunction